Home › Practice › Doubles & Triples › Question 5
The pintle hook is:
Correct answer: B. A coupling device used to attach a converter dolly or trailer to the rear of another trailer
Why: Pintle hooks are heavy hooks on the back of a trailer or dolly that engage with a lunette ring on the towed trailer. Inspect for cracks and proper latching.
Each additional articulation point multiplies rearward amplification. A driver pulling triples must steer earlier, brake sooner, and inspect twice as much equipment as a single-trailer driver.
Learn the correct trailer placement order by weight, the procedure for converting a single to a double, and the special inspection items unique to converter dollies and pintle hook assemblies.
The Doubles & Triples portion of the CDL knowledge exam covers more than this single question. Use this site's full Doubles & Triples bank to drill every topic, then test yourself with one of our state-specific practice sets to confirm you are ready for the actual DMV exam in your state. Always check your state's CDL handbook for any local addenda before the test day.
If you are still building your overall CDL foundation, start with the General Knowledge bank — every CDL applicant must pass it — and then work outward to the endorsements you plan to add.
